我最近将我的项目更新为最新版本的Entity Framework Core(+ VS2017).当我尝试更新数据库时,我收到以下错误消息.错误消息很明显,但似乎是错误的.我的ConfigureServices中有一个AddDbContext(参见下面的代码).
我错过了什么？
错误
> dotnet ef database update --verbose
Finding DbContext classes...
Using context 'ApplicationDbContext'.
System.InvalidOperationException: No database provider has been configured for this DbContext. A provider can be configured by overriding the DbContext.OnConfiguring method or by using AddDbContext on the application service provider. If AddDbContext is used, then also ensure that your DbContext type accepts a DbContextOptions<TContext> object in its constructor and passes it to the base constructor for DbContext.
启动
public void ConfigureServices(IServiceCollection services) { …